Dividend investing is a tried-and-true strategy for generating strong, steady returns in economies both good and bad. But as corporate America's slew of dividend cuts and suspensions over the past few years has demonstrated, it's not enough simply to buy a high yield. You also need to make sure those payouts are sustainable.

Let's examine how Chimera (NYSE: CIM) stacks up. In this series, we consider four critical factors investors should examine in every dividend stock. We'll then tie it all together to look at whether Chimera is a dividend dynamo or a disaster in the making.

1. Yield
First and foremost, dividend investors like a large forward yield. But if a yield gets too high, it may reflect investors' doubts about the payout's sustainability. If investors had confidence in the stock, they'd be buying it, driving up the share price and shrinking the yield.

Chimera yields a whopping 13.3%, considerably higher than the S&P 500's 2%.

2. Payout ratio
The payout ratio might be the most important metric for judging dividend sustainability. It compares the amount of money a company paid out in dividends last year to the earnings it generated. A ratio that's too high -- say, greater than 80% of earnings -- indicates that the company may be stretching to make payouts it can't afford, even when its dividend yield doesn't seem particularly high.

As a real estate investment trust (REIT), however, Chimera is required by law to pay out more than 90% of its earnings in the form of dividends in return for not having to pay corporate income taxes.

3. Balance sheet
The best dividend payers have the financial fortitude to fund growth and respond to whatever the economy and competitors throw at them. The debt-to-equity ratio is generally a good measure of a company's total debt burden, but remember that for mortgage REITs like Chimera, debt is a big part of their business model. It's also important for mortgage REIT investors to consider portfolio makeup, since leverage isn't the only kind of risk. The proportion of mortgage-backed securities not guaranteed by Fannie Mae and Freddie Mac is a good first glance at portfolio risk.

Let's see how Chimera stacks up next to its peers:

Company

Debt-to-Equity Ratio

Non-Agency Securities as % of Total Mortgage-Backed Securities

Chimera 185% 53%
Invesco (NYSE: IVR) 653% 29%
Two Harbors (NYSE: TWO) 528% 19%
Annaly Capital (NYSE: NLY) 557% 0%

Source: S&P Capital IQ, company filings.

As far as mortgage REITs go, Chimera uses very limited leverage to finance a relatively risky, high-yield portfolio. To put it another way, Chimera's investments yield on average 7.2%, far higher than Annaly Capital's 3.3%, Two Harbors' 4.2%, or even Invesco's 4.8%. All that extra income comes at a cost -- default risk -- that has to be managed with less leverage.

4. Growth
A large dividend is nice; a large growing dividend is even better. To support a growing dividend, we also want to see earnings growth.

REITs have been enjoying a boom in recent years, as low interest rates have driven their cost of funding down much faster than the yield on their investments. That equation can't last forever, but it's unclear when it will change. Last month the Fed announced it expects interest rates to remain near zero through 2014.

But that good news for REIT investors doesn't preclude long-term rates from falling further should the Fed become more concerned over the pace of economic recovery. Just one year ago, Chimera's portfolio yielded 8.9%. Invesco, Two Harbors, and Annaly have seen their portfolio yields decline as well.

The Foolish bottom line
With a large yield, modest leverage as far as its industry is concerned, and economic conditions working in its favor for the time being, Chimera looks like a dividend dynamo, assuming its management team makes smart investments, though these high dividend payouts are almost certain to come down eventually. If you're looking for some other great dividend stocks, I suggest you check out "Secure Your Future With 11 Rock-Solid Dividend Stocks," a special report from The Motley Fool about some serious dividend dynamos. I invite you to grab a free copy to discover everything you need to know about these 11 generous dividend payers – simply click here.